# SDR 2003FA0001215

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 25, 2003
- Submitted: December 8, 2003
- Operation: General aviation
- Aircraft: [N813CD](https://openairdocs.org/aircraft/N813CD), registered now
- Make and model: Cirrus SR22
- Registry model: [Cirrus SR22](https://openairdocs.org/model/cirrus-design-sr22) (OpenAirDocs)
- Aircraft serial: 0141
- Engine: Cont IO550*
- System (JASC): [2420 · AC Generation System](https://openairdocs.org/jasc/2420)
- Part: Case
- Part number: BC4101
- Part serial: 091934
- Condition: Cracked
- Location: Nr 2  Alternator
- Part time: 540 hours
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2003FA0001215

## Discrepancy

ALTERNATOR CASE CRACKED AT MOUNTING FLANGE ALLOWING ALTERNATOR TO DEPART THE ACCESSORY CASE.  THE ALTERNATOR ARMATURE STILL ROTATED FREELY.  PROBABLE CAUSE:  ENGINE VIBRATION, MFG REPORTED THAT THIS WAS THE 9TH ALTERNATOR TO FAIL THIS WAY.

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